Those DC Universe animated films are pretty decent. I'd like to see something like that, sure.
That said, an live action film would be better. I don't want it in 3-D, I want it in IMAX, and I want it to be LOTR-style epic. Expansive world and plot, deep characterization, large cast, mature discussion of the subjects, you know, the whole deal.
But if I'm being honest, what I really want is an animated TV show with all those things.